I certainly recommend the Samsung notebook for your needs, the screen itself may be slightly smaller but it has the same resolution of the Toshiba. If you can afford it, it should serve you well. Samsung makes some solid notebooks.

FutureShop's web page is crashing for me (probably the Black Friday sale), but for casual gaming you're definitely looking for an AMD A10 for its price/performance. (Search around for "Mobile Trinity" reviews.)